Dates & age calculators

Free dates & age calculators with formulas shown on every page.

• Age calculatorYears, months, days, hours, and weekday of birth.
• Age Difference calculatorThe gap between two birthdays.
• Chronological Age calculatorY-M-D age used in school and clinics.
• Birthday calculatorDays until next birthday and weekday.
• Date Calculator calculatorAdd days, weeks, months, years.
• Days Between calculatorDays, weeks, months between two dates.
• Days Until calculatorCountdown to a date.
• Days From Today calculatorAdd or subtract days from today.
• Generation calculatorGeneration from birth year.
• Timezone Offset calculatorCommon cities vs UTC. Not the IANA tzdb.